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Linux: Sometimes the opengles depth test can't work order

Tool/software: Linux

when I use some 3D perspective Params, the 3d-car scene will be displayed abnormally,and one part of car will intermix the others.

i found the depth of some part of car has been wrong, so the depth test can't work normally.

but when I compile the same code in PC (ubuntu or win ,Cross-platform) , it can work normally.

when i use PVRTrace tool to trace the application ,the *.pvrt  also  be normal , .but ti arm 's screen displays wrong,the depth test is wrong.

so i can't understand it.